Comment 2 for bug 370655

But did this happen as you were install Samba, or when you were installing some other package? Based on the attached DpkgTerminalLog.txt it seems as if Samba were successfully installed at 09:04? It then looks as another package install at 09:16? What was the primary package then (compared to those installed as dependencies)?

Anyway, these looks like relevant lines from DpkgTerminalLog.txt

Processing triggers for ufw ...
debconf: unable to initialize frontend: Dialog
debconf: (Dialog frontend will not work on a dumb terminal, an emacs shell buffer, or without a controlling terminal.)
debconf: falling back to frontend: Readline
dpkg: error processing samba (--configure):
 package samba is already installed and configured